Base-burning stove



W. B. TREADWELL.

Base Burning Stove.

10.447,881. Patented May 23, 1865.

ELI/g2 l Fva JZ a E f E A l E 78: f :2f- N r V 2' 0. ff@ -c/ UNITEDSTATES PATENT OEEICE..

W. TREADWELL, OF ALBANY, NEW YORK.

BASE-BURNING STOVE.

To all whom t may concern.:

Beit known that I, W. B.TREADWELL, of the city and county of Albany,State of New York, have invented certain new a-nd useful Improvements inSupply-Cylinder Base-Burning Stoves, and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanyin g drawings, making a part of thisspeciication,'in which- Figure l is a transverse section through myimproved stove. Fig. 2 is a section takenV through the stove in avertical plane at right angles to Fig. l. Fig. 3 is a horizontal sectionand bottom view of the base ofthe stove. Fig. 4 is a perspective view ofthe rebrick section of the stove. Fig. 5 shows in a sectional view themanner of constructing the mica door of the stove.

Similar lettersof reference indicate corresponding parts in the severalfigures.

In the operation of stoves constructed under my patent of September 29,1863, the products ot' combustion either descend into the base of thestove, or, ascending, they pass into the flue surrounding thefeed-cylinder. Under the operation,descending, the upper part ofthestove is not heated. Under the operation, ascending, the base of thestove is not heated.

In the operation of stoves constructed under the patent granted to meNovember l, 1564, the products of combustion both ascend and descend atthe same time by means of the use ot a perforated damper, in whichlatter case the stove can be'well heated throughout at all times; butthere are one or two objections to this mode of constructing mystoves,which the present invention is intended to remove,

'as will be hereinafter described.

To enable others skilled in the art to make and use my invention, I willdescribe its construction and operation. p

In the accompanying drawings, A represents the base of the stove, withinwhich are chambers or flues divided by partitionplates a a.. Chamber a:occupies the center of the base, running across fromrear to front, andchambers T T are located on each side of chamber as shown in Figs. l and3.

. B is the ash-pit section of the stove, the upper plate of which formsa support for the grate and the re-pot. Plates b b, arranged in avertical plane and extending across said section, form chambers O O, asshown in Fig. l, and in these plates ashvalves c c are formed, whichopen into chambers O O.

C is the nre-pot, with inclined sides. and which should have itsinterior surface ribbed or corrugated. It has a lipped project-ion, d,flarin g upward, as shown in Fig. 2, to give free passage to the coalsin descending, so as to prevent the obstruction of the light. This pot(l has also a lipped projection, e, fiar-ing outward and upward, asshown in Figs. l and 2.

' D is the plate which forms the brim to the cast-iron fire-pot G, andthe plate upon which the fire-brick section of the iirechambcrs rest,the back part of which plate is carried'up at an angle, j', tocorrespond with the angle e of the cast-iron fire-pot, which, united,lead to `flue L behind the stove. Thus formed, no

coals in descending can lodge upon the plate, and none will drop intothe tlue.'

It will be evident that I obtain room or space at the point where themica window is located, and at the point where the ilue or passage g isloca ted, for the expansion of the gasesof combustion,without'increasing the diameter of the fire-pot at any other than thesepoints, and thus the object I have been seeking after is obtained, whilethe main body of fuel is compacted together and burned within a firepotof ordinary size or diameter, except at the two points named.

Heretofore stoves haveV been constructed with a tire-pot of much largerdiameter at all points than the diameter ofthe magazine, and thereforethe body of coals have not been held together as compactly as desirable.Besides this, stoves of this class have not had both an upward anddownward draft outside the magazine, except in such instances as my ownprevous inventions show, and hence the necessity for the construction Ihave herein described and represented has not been apparent.

E represents the fire-brick, arranged in the form of an arch, formingthe upper section of the trechamber, and being supported upon the plateD. Flue g is formed through said firebrick, as shown in Fig. 2, with thecap hresting at pointz' i, Fig. 4. An opening, 7c, is also made atthefront part ofthe tire-brick section, which is covered by thekey-brick m, which is held in position by cast-iron jambs at o o.

F is a mica door, which is hung on one side of the opening into thefire-chamber bya hinge,

I j, and fastened by a common turnkey, n, at

the opposite side ot' said opening. The basering77 s is formed upon theouter casing ofthe stove, Which ring holds the mica rmly and preventsthe escape of gas when the door is closed.

M M are ascending tlues, placed at the sides of the cast-iron section ofthe tire-chamber, and are ot' about the same length or height of thissection, as shown in Fig. 1.

G is the feed-cylinder, with its bearings at bearings at points s s.

H H represent a tlue surrounding the feedcylinder and the tire-brickVsection of the tirechamber. v

I is a valve situated a-t the head of or alittle above chamber k in iiueL, as shown in Fig. 2. When this valve is open, it gives a direct dra-ftto the stove to aid in liindling the tire quickly. Valve I isperforated, as shown at r, so that in all cases, when it is closed, thegases have direct exit and cannot escape into the room under anycircumstances.

The register l in 'line L is for the purpose of controlling combustion,and the valves c c, above referred to, are for the purpose of carryingoit' the dust While shaking the grate.

In a stove thus constructed the products of combustion pass from therefchamber (the valve I being closed) through the iue g into chamber Kbehind, as shown in Fig. 2; thence through descending tlueJ into thebase of the ot' the stove. Passing thence directly forward throughchamber x, they turn into the chambers T T to the right and to the left;thence ascending into chambers o o and continuing upward, they passthrough ues M M into chambers H H, which surrounds the feed-cylinder andthe nre-brick section of the iirechamber. From this chamber H theproducts ot' combustion pass through the branch lue N in to theescape-Hue L above the valve I. Flue H has a casing of sheet metalsurrounding it, which gives a large radiating-surface. Thus constructed,the products of combustion are held longer Within the stove;consequently the radiation of the heat from the stove Will be Y tiallyin the manner and for the purpose described.

W. B. TREAD WELL.

Witnesses FRANK A. TREADWELL, ELIZABETH TREADWELL.

